CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1972-0261
OGO 4
OGO 4 (NORAD 2895) re-entered Earth’s atmosphere on 16 August 1972, after 5 years in orbit.
Official date
NORAD number
2895
International designator
1967-073A
Object type
Spacecraft
Country
United States
Launched
28 Jul 1967Vandenberg
Re-entered (UTC)
16 Aug 1972UTC calendar day
Time in orbit
5 years1,846 days
How it ended
Re-entered (natural decay)
Latitude range
85.9°N to 85.9°SFinal inclination 85.9°
Mass
551 kg
Operator
GSFC
Built by
TRW
Bus
OGO
Programme
POGO
Where it came down
Latitude band its orbit allowedExact position not recorded
No position was recorded for this re-entry. Its final orbit, inclined at 85.9°, allowed a re-entry anywhere between 85.9°N and 85.9°S.
Life in orbit
5 yearsOGO 4’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1967-073
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1972-0261
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1972-0261
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.